#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
union Un
{
	char c;
	int i;
};
int main()
{
	union Un u = { 0 };
	printf("%zd\n", sizeof(u));

	printf("%p\n", &u);
	printf("%p\n", &(u.i));
	printf("%p\n", &(u.c));
	return 0;
}